Siemens HQR23B150HL Molded Case Circuit Breaker
- 150A
- 3 Pole
- Unit Mount
Quantity
Siemens HQR23B150HL - 150A 3 Pole Molded Case Circuit Breaker
New
Quantity
Description
Built for commercial and industrial applications, the Siemens HQR23B150HL is a 3-pole molded case circuit breaker from the SENTRON family. It provides reliable long-time and instantaneous (LI) protection for demanding electrical systems. This unit mount breaker installs into Siemens enclosures and switchboards. It serves as a direct replacement for legacy QJ frame breakers. Rated at 100kAIC at 240VAC, it features fixed thermal-magnetic trip settings and is HACR rated for HVAC use.Specifications
| Brand | Siemens |
|---|---|
| Part Number | HQR23B150HL |
| Series | HQR |
| Amperage | 150A |
| Poles | 3 |
| Mounting Style | Unit Mount |
| Voltage | 240VAC |
| Phase | 3 |
| AIC Rating | 100kA @ 240VAC |
| Frame Type | HQR |
|---|---|
| Terminal Type | Lugs |
| For Use With | Siemens Enclosures, Switchboards |
| Wire Gauge | 3 AWG - 300 kcmil (Al/Cu) |
| Max Wire | 300 kcmil |
| Min Wire | 3 AWG |
| Trip Technology | Thermal Magnetic |
|---|---|
| Trip Function Code | LI |
| Trip Function | Long-Time, Instantaneous |
| Trip Adjustability | Fixed Thermal, Fixed Magnetic |
| Available Options | Shunt Trip, Auxiliary Switch, Alarm Switch |
|---|---|
| Accessories | Line and Load Lugs |
| Standards | CSA C22.2 No. 5, UL 489 |
| Approval | CSA, HACR, UL |
| Temp Rating | 40C |
| Construction Features | HACR Rated, Reverse Feed, Non-Interchangeable Trip, Trip-Free Mechanism, Push-to-Trip Button, High Interrupting Capacity |
Product FAQs
6 answersWhat enclosures are compatible with the HQR23B150HL?
This unit mount breaker installs into Siemens enclosures and switchboards. Because it is a feed-thru design, it does not plug or bolt onto a standard load center busbar.
Can this breaker replace older Siemens QJ frames?
Yes, the QR frame family, which includes this HQR model, serves as a direct replacement for legacy Siemens QJ frame circuit breakers.
What type of connections does this breaker use?
It features a feed-thru connection style, meaning it is equipped with line and load lugs rather than a busbar mounting clip. The lugs accept 3 AWG to 300 kcmil aluminum or copper conductors.
What does the H in the HQR prefix signify?
The H indicates a high interrupting capacity. This specific model provides a 100kAIC rating at 240VAC, which is higher than standard QR frame breakers.
Are the trip settings adjustable on this model?
No, the thermal-magnetic trip unit has fixed long-time and fixed instantaneous settings. It does not offer field adjustability.
Is this breaker suitable for HVAC applications?
Yes, this breaker is HACR rated, making it suitable for use with heating, air conditioning, and refrigeration equipment.
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